Left Foot Breaking, can someone explain?

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Originally Posted by Steve Boyd

Another problem with modern road cars is the emergency braking assistance part of the anti lock brake system. This assumes normal right foot braking an measures the time taken between lifting the throttle and applying the brakes. If the time is less than a set value it assumes you're making an emergency stop and applies maximum brakes whatever the pedal pressure. Left foot braking with these cars can make the brake computer think you want to make an emergency stop - hence face on windscreen!

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Good point.. hadnt thought about that. I've always owned older cars that dont have the emergency braking assist.. doubt Id ever want a car that had that.

Nenukknak, with Rwd (and plate type LSD), left foot braking should only ever be used as a reaction time/foot movement time saver, the pedals should not be applied simultaniously unless you really want to lock the diff and spin as I quickly learned.. ;)

Modern electronics in cars can be quite irritating. My VW GTi won't let you use both the brake and the accellerator when left foot braking. Once the brake goes on, the computer assumes that you want the accellerator off.

NIce bit of video from the past with some good foot action shown in the early part. Just a nice vid anyway from Group B days.
http://www.youtube.com/watch?v=RWqWp...eature=related

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Originally Posted by Xeroid

NIce bit of video from the past with some good foot action shown in the early part. Just a nice vid anyway from Group B days.
http://www.youtube.com/watch?v=RWqWp...eature=related

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Another mis leading video but entertaining.notice how Walter Rohl moves his left foot away from brake pedal back to left.Now he looses the most advantage of lfb.Rreaction time.

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Originally Posted by Nenukknak

But you do also use LFB to steer in 4wd (and RWD) as well, not just because reactiontime is quicker?

And how do you use the brake and throttle then? Do you keep the pressure constant on either one or the other, or do you alternate pressure on both brake and throttle as is needed?

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Good point. You use brakes in 4wd to move weight transfer.More weight in front, less in back.So yuo can kill understeer.But you can do same with right foot.It is just with lfb your reaction time is much quicker.It is very seldom that you use brakes and throttle same time(unlike in fwd)in 4wd.

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Originally Posted by RichardM

Modern electronics in cars can be quite irritating. My VW GTi won't let you use both the brake and the accellerator when left foot braking. Once the brake goes on, the computer assumes that you want the accellerator off.

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Stay away in any VW group cars(VW,Skoda,Seat and Audi).If you brake and throttle same time computer thinks you have stuck throttle!

I would have thought not having boring/characterless cars was good enough reason to stay away from VAG group just on it's own.

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Originally Posted by pentti

Good point. You use brakes in 4wd to move weight transfer.More weight in front, less in back.So yuo can kill understeer.But you can do same with right foot.It is just with lfb your reaction time is much quicker.It is very seldom that you use brakes and throttle same time(unlike in fwd)in 4wd.

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I read the same thing from Richard Burns Rally School (part of the game).
Now I know who he learned that from :)